Changchun to Seoul: time difference
Seoul is 1 h ahead of Changchun. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Changchun 12:15 12:15 PM Seoul 13:15 1:15 PM You –:–
12:15 12:15 PM
China Standard Time · UTC+8
☀️ 05:53 · 🌙 16:58
13:15 1:15 PM
Korean Standard Time · UTC+9
☀️ 06:40 · 🌙 17:57
·
+1 h
Seoul is 1 h ahead of Changchun.
When you, Changchun and Seoul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇳 Changchun
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇰🇷 Seoul
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇳 Changchun | 🇰🇷 Seoul |
|---|---|---|
| Local time | 12:15 | 13:15 |
| Local date | Thursday, October 15, 2026 | Thursday, October 15, 2026 |
| Time zone | China Standard Time | Korean Standard Time |
| UTC offset | UTC+8 | UTC+9 |
| Offset from Changchun | — | +1 h |
| IANA zone | Asia/Shanghai | Asia/Seoul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:53 | 06:40 |
| Sunset | 16:58 | 17:57 |
| Daylight | 11 h 5 min | 11 h 17 min |
| People on this clock | 9,066,906 | 9,509,458 |
Compare Changchun with another city
More comparisons with Changchun: the time zones next to it and the far side of the clock.
Big time differences
Changchun and Seoul: common questions
What is the time difference between Changchun and Seoul?
Seoul is 1 hour ahead: it uses UTC+9, while Changchun is on UTC+8.
What time is it in Seoul when it is 9:00 AM in Changchun?
When it is 9:00 AM in Changchun, it is 10:00 AM in Seoul.
What time is it in Seoul when it is 6:00 PM in Changchun?
When it is 6:00 PM in Changchun, it is 7:00 PM in Seoul.
When do working hours in Changchun and in Seoul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Changchun, which is 10:00 AM to 6:00 PM in Seoul.
When does the date change in Seoul compared with Changchun?
The new day starts in Seoul earlier: at 11:00 PM in Changchun it is already midnight there. Until 1:00 AM in Seoul, Changchun is still on the previous day.
Does the time difference between Changchun and Seoul change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
